HRID279827

反应详情

EQUATION

反应方程式

REACTANTS

反应物

HCID7918

Acetic anhydride

C4H6O3

结构：CCC(=O)O[C@]1(C(=O)CO)CC[C@H]2[C@@H]3C[C@H](C)C4=CC(=O)C=C[C@]4(C)[C@H]3[C@@H](O)C[C@@]21C

HCID10025718

未命名化合物

PRODUCTS

生成物

结构：CCC(=O)O[C@]1(C(=O)COC(C)=O)CC[C@H]2[C@@H]3C[C@H](C)C4=CC(=O)C=C[C@]4(C)[C@H]3[C@@H](O)C[C@@]21C

HCID63019

Methylprednisolone aceponate

C27H36O7

AUXILIARIES

试剂、催化剂与溶剂

溶剂HCID1049

Pyridine

C5H5N

PROCEDURE

实验过程

Analogously to Example 1, 1.0 g of 11β,21-dihydroxy-6α-methyl-17-propionyloxy-1,4-pregnadiene-3,20-dione is stirred in 10 ml of pyridine with 5 ml of acetic anhydride for one hour at room temperature and then worked up, thus isolating 790 mg of 21-acetoxy-11β-hydroxy-6α-methyl-17-propionyloxy-1,4-pregnadiene-3,20-dione, mp 138° C.